100% it’s unlikely to conceive naturally. But does happen, partly because women know it’s unlikely and take risks.
And there are certainly higher risks with pregnancy in late 40s. So most wouldn’t risk it and are careful with contraception.
But IMHO it’s unacceptable for any woman to be judged on getting pregnant at any age. Life’s full of risks and not everyone has a bad outcome. I remember the furore when Cherie Blair announced she was pregnant. She also miscarried at 47.